ENTRY AND START SYSTEM (for Entry Function) TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Disconnect the E117 certification ECU (smart key ECU assembly) connector.

      A003SNTE27

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with connector disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      E117-1 (+B) - Body ground W - Body ground +B power supply Power switch off 11 to 14 V
      E117-17 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction in the wire harness.

    3. Reconnect the E117 certification ECU (smart key ECU assembly) connector.

    4. Measure the voltage according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      E117-3 (TSW1) - E117-17 (E) V - W-B Entry lock switch (for driver side) signal Entry lock switch (for driver side) not pushed

      11 to 14 V

      (Intermittent operation)
      E117-3 (TSW1) - E117-17 (E) V - W-B Entry lock switch (for driver side) signal Entry lock switch (for driver side) pushed Below 2 V
      E117-4 (TSW2) - E117-17 (E) R - W-B Entry lock switch (for front passenger side) signal Entry lock switch (for front passenger side) not pushed

      11 to 14 V

      (Intermittent operation)
      E117-4 (TSW2) - E117-17 (E) R - W-B Entry lock switch (for front passenger side) signal Entry lock switch (for front passenger side) pushed Below 2 V
      E117-5 (SEL1) - E117-17 (E) Y - W-B Touch sensor activation control signal Move the key more than 5 m (16.4 ft.) away from the front door (for driver side) 11 to 14 V
      E117-5 (SEL1) - E117-17 (E) Y - W-B Touch sensor activation control signal Brought to door outside handle assembly Below 1 V
      E117-6 (SEL2) - E117-17 (E) LG - W-B Touch sensor activation control signal Move the key more than 5 m (16.4 ft) away from the front door (for front passenger side) 11 to 14 V
      E117-6 (SEL2) - E117-17 (E) LG - W-B Touch sensor activation control signal Brought to door outside handle assembly Below 1 V
      E117-7 (TSW5) - E117-17 (E) BE - W-B Back door opener switch assembly (unlock switch) signal Back door opener switch assembly (unlock switch) not pushed

      11 to 14 V

      (Intermittent operation)
      E117-7 (TSW5) - E117-17 (E) BE - W-B Back door opener switch assembly (unlock switch) signal Back door opener switch assembly (unlock switch) pushed Below 2 V
      E116-24 (TSW6) - E117-17 (E) V - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) not pushed

      11 to 14 V

      (Intermittent operation)
      E116-24 (TSW6) - E117-17 (E) V - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) not pushed Below 2 V
      E117-11 (CLG5) - E117-12 (CG5B) R - G Indoor electrical key oscillator (for front floor) sensor signal 30 seconds of driver side door opened and closed, power switch off Below 1 V
      E117-11 (CLG5) - E117-12 (CG5B) R - G Indoor electrical key oscillator (for front floor) sensor signal Within 30 seconds after driver side door opened and closed, power switch off Alternating between 5 V and below 1 V
      E117-13 (CLG6) - E117-14 (CG6B) W - B Indoor electrical key oscillator (for center floor) sensor signal 30 seconds of driver side door opened and closed, power switch off Below 1 V
      E117-13 (CLG6) - E117-14 (CG6B) W - B Indoor electrical key oscillator (for center floor) sensor signal Within 30 seconds after driver side door opened and closed, power switch off Alternating between 5 V and below 1 V
      E117-15 (CLG7) - E117-16 (CG7B) R - G Indoor electrical key oscillator (for rear floor) sensor signal 30 seconds of driver side door opened and closed, power switch off Below 1 V
      E117-15 (CLG7) - E117-16 (CG7B) R - G Indoor electrical key oscillator (for rear floor) sensor signal Within 30 seconds after driver side door opened and closed, power switch off Alternating between 5 V and below 1 V
      E117-18 (IG) - Body ground B - Body ground Ignition power supply Power switch off Below 1 V
      E117-18 (IG) - Body ground B - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      E117-22 (SEN1) - E117-17 (E) R - W-B Touch sensor detection signal Door outside handle assembly (for driver side) touched Below 2 V
      E117-22 (SEN1) - E117-17 (E) R - W-B Touch sensor detection signal Door outside handle assembly (for driver side) not touched 11 to 14 V
      E117-23 (SEN2) - E117-17 (E) W - W-B Touch sensor detection signal Door outside handle assembly (for front passenger side) touched Below 2 V
      E117-23 (SEN2) - E117-17 (E) W - W-B Touch sensor detection signal Door outside handle assembly (for front passenger side) not touched 11 to 14 V
      E117-29 (RCO) - E117-17 (E) V - W-B Entry door control receiver power source Power switch off, all doors closed and electrical key switch on 4.5 to 5.5 V
      E117-29 (RCO) - E117-17 (E) V - W-B Entry door control receiver power source Power switch off, all doors closed and electrical key switch off Below 1 V
      E117-31 (CLG8) - E117-32 (CG8B) LG - P Outside electrical key oscillator (for rear side) sensor signal Back door opener switch assembly off Below 1 V
      E117-31 (CLG8) - E117-32 (CG8B) LG - P Outside electrical key oscillator (for rear side) sensor signal Back door opener switch assembly on Alternating between 5 V and below 1 V
      E117-33 (CLG1) - E117-34 (CG1B) R - G Door electrical key oscillator (for driver side) sensor signal All doors closed, all doors locked and power switch off Alternating between 5 V and below 1 V
      E117-33 (CLG1) - E117-34 (CG1B) R - G Door electrical key oscillator (for driver side) sensor signal Door unlocked or door open Below 1 V
      E117-35 (CLG2) - E117-36 (CG2B) B - Y Door electrical key oscillator (for front passenger side) sensor signal All doors closed, all doors locked and power switch off Alternating between 5 V and below 1 V
      E117-35 (CLG2) - E117-36 (CG2B) B - Y Door electrical key oscillator (for front passenger side) sensor signal Door unlocked or door open Below 1 V
      E117-38 (RDA) - E117-17 (E) Y - W-B Entry door control receiver data input signal Power switch off, all doors closed and electrical key switch off 11 to 14 V
      E117-38 (RDA) - E117-17 (E) Y - W-B Entry door control receiver data input signal Power switch off, all doors closed and electrical key switch on Pulse generation
      E117-38 (RDA) - Body ground Y - Body ground Tuner input signal Power switch off, all doors closed, electrical key not in detection area 11 to 14 V pulse generation at regular intervals
      E117-38 (RDA) - Body ground Y - Body ground Tuner input signal Electrical key in detection area Pulse generation
      E117-39 (RSSI) - E117-17 (E) R - W-B Entry door control receiver electric wave existence signal Power switch off, all doors closed, electrical key not in detection area 11 to 14 V
      E117-39 (RSSI) - E117-17 (E) R - W-B Entry door control receiver electric wave existence signal Power switch off, all doors closed, electrical key in detection area Below 2 V

      If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.

  2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Disconnect the 2B and 2C junction block connectors.

      A003TAME31

    2. Disconnect the A main body ECU connector.

    3. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with the connectors disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2B-6 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      2C-18 (BECU) - Body ground W - Body ground Battery power supply Power switch off 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      A-31 (ALTB) - Body ground - Battery power supply Power switch off 11 to 14 V
      A-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V
      A-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V

      If the result is not as specified, there may be a malfunction in the wire harness.

    4. Reconnect the 2B and 2C junction block connectors.

    5. Reconnect the A main body ECU connector.

    6. Measure the voltage according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2B-1 (ACT-) - Body ground SB - Body ground Door lock motor unlock drive output (all doors) Driver side door control switch off Below 1 V
      2B-1 (ACT-) - Body ground SB - Body ground Door lock motor unlock drive output (all doors) Driver side door control switch unlocked 11 to 14 V
      2B-8 (ACT+) - Body ground BE - Body ground Door lock motor lock drive output (all doors) Driver side door control switch off Below 1 V
      2B-8 (ACT+) - Body ground BE - Body ground Door lock motor lock drive output (all doors) Driver side door control switch locked 11 to 14 V

      2B-31 (FRCY) - Body ground*1

      2D-35 (FLCY) - Body ground*2

      BR - Body ground*1

      W - Body ground*2

      		 Front passenger side door courtesy switch input Front passenger side door open Below 1 V

      2B-31 (FRCY) - Body ground*1

      2D-35 (FLCY) - Body ground*2

      BR - Body ground*1

      W - Body ground*2

      		 Front passenger side door courtesy switch input Front passenger side door closed 11 to 14 V

      2D-35 (FLCY) - Body ground*1

      2B-31 (FRCY) - Body ground*2

      W - Body ground*1

      BR - Body ground*2

      		 Driver side door courtesy switch input Driver side door open Below 1 V

      2D-35 (FLCY) - Body ground*1

      2B-31 (FRCY) - Body ground*2

      W - Body ground*1

      BR - Body ground*2

      		 Driver side door courtesy switch input Driver side door closed 11 to 14 V
      2D-25 (LSR) - Body ground*4 Y - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V
      2D-25 (LSR) - Body ground*4 Y - Body ground Rear door LH lock position switch input Power switch off, all doors closed and rear door LH locked 11 to 14 V
      2B-29 (LSR) - Body ground*4 Y - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V
      2B-29 (LSR) - Body ground*4 Y - Body ground Rear door RH lock position switch input Power switch off, all doors closed and rear door RH locked 11 to 14 V
      E120-6 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch input Rear door open Below 1 V
      E120-6 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch input Rear door closed 11 to 14 V
      E120-7 (LSFL) - Body ground Y - Body ground Front door LH lock position switch input Front door LH unlocked Below 1 V
      E120-7 (LSFL) - Body ground Y - Body ground Front door LH lock position switch input Power switch off, all doors closed and front door LH locked 11 to 14 V
      E120-11 (L2) - Body ground*3 SB - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V
      E120-11 (L2) - Body ground*3 SB - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V
      E120-18 (LSFR) - Body ground LG - Body ground Front door RH lock position switch input Front door RH unlocked Below 1 V
      E120-18 (LSFR) - Body ground LG - Body ground Front door RH lock position switch input Power switch off, all doors closed and front door RH locked 11 to 14 V
      E120-19 (BCTY) - Body ground LG - Body ground Back door courtesy light switch input Back door open Below 1 V
      E120-19 (BCTY) - Body ground LG - Body ground Back door courtesy light switch input Back door closed 11 to 14 V
      E120-12 (UL2) - Body ground*3 P - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V
      E120-12 (UL2) - Body ground*3 P - Body ground Driver door key-linked unlock input Driver door key cylinder off 11 to 14 V

      • *1: for LHD

      • *2: for RHD

      • *3: w/ Double Locking System

      • *4: for RHD and w/ Double Locking System

      If the result is not as specified, the main body ECU (multiplex network body ECU) may have a malfunction.

  3. COMBINATION METER ASSEMBLY


    1. Disconnect the E46 combination meter assembly connector.

      A003RPAE03

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E46-32 (B) - Body ground W - Body ground Battery Power switch off 11 to 14 V
      E46-30 (ET) - Body ground BR - Body ground Ground (Signal ground) Always Below 1 Ω

      If the result is not as specified, there may be a malfunction in the wire harness.

    3. Reconnect the E46 combination meter assembly connector.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E46-33 (IG+) - Body ground P - Body ground Power switch signal Power switch off Below 1 V
      E46-33 (IG+) - Body ground P - Body ground Power switch signal Power switch on (IG) 11 to 14 V

      If the result is not as specified, the combination meter assembly may have a malfunction.